ORANO // Annual Activity Report 2024

Orano - Annual Activity Report 2024 263 SUSTAINABILITY STATEMENT 4 Report on the certification of sustainability information and verification of the disclosure requirements under Article 8 of Regulation (EU) 2020/852 for Orano SA, for the year ended December 31, 2024 4.6 Report on the certification of sustainability information and verification of the disclosure requirements under Article 8 of Regulation (EU) 2020/852 for Orano SA, for the year ended December 31, 2024 This is a translation into English of the Statutory Auditors’ report on the certification of sustainability information and verification of the disclosure requirements under Article 8 of Regulation (EU) 2020/852 of the Company issued in French and it is provided solely for the convenience of English-speaking users. This report should be read in conjunction with, and construed in accordance with, French law and the H2A guidelines on “Limited assurance engagement - Certification of sustainability reporting and verification of disclosure requirements set out in Article 8 of Regulation (EU) 2020/852”. To the Shareholders, This report is issued in our capacity as Statutory Auditor of Orano SA (“Orano”, or “the Group”). It covers the sustainability information and the information required by Article 8 of Regulation (EU) 2020/852, relating to the financial year ended December 31, 2024, included in the Group management report and set out in sections 4.1 to 4.5 of Chapter 4 “Sustainability information” of the Annual Activity Report. Pursuant to Article L.233-28-4 of the French Commercial Code (Code de commerce), Orano is required to include the abovementioned information in a separate section of its management report. This information has been prepared in the context of the first-time application of the aforementioned articles, a context characterized by uncertainties regarding the interpretation of the legal texts, the use of significant estimates, the absence of established practices and frameworks, in particular for the double materiality assessment, and an evolving internal control system. It provides an understanding of the impact of the Group’s activity on sustainability matters, as well as the way in which these matters influence the development of its business, performance and position. Sustainability matters include environmental, social and corporate governance matters. Pursuant to II of Article L.821-54 of the aforementioned Code, our responsibility is to carry out the procedures necessary to issue a conclusion, expressing limited assurance, on: ● compliance with the sustainability reporting standards adopted pursuant to Article 29 ter of Directive (EU) 2013/34 of the European Parliament and of the Council of December 14, 2022 (hereinafter ESRS for European Sustainability Reporting Standards) of the process implemented by Orano to determine the information reported, and compliance with the requirement to consult the social and economic committee provided for in the sixth paragraph of Article L.2312-17 of the French Labor Code (Code du travail); ● compliance of the sustainability information included in the Group management report and set out in sections 4.1 to 4.5 of Chapter 4 of the Annual Activity Report with the requirements of Article L.233-28-4 of the French Commercial Code, including with the ESRS; and ● compliance with the requirements set out in Article 8 of Regulation (EU) 2020/852. This engagement is carried out in compliance with the ethical rules, including those on independence, and quality control, prescribed by the French Commercial Code. It is also governed by the H2A guidelines on “Limited assurance engagements on the certification of sustainability information and verification of disclosure requirements set out in Article 8 of Regulation (EU) 2020/852”. In the three separate parts of the report that follow, we present, for each of the parts covered by our engagement, the nature of the procedures we carried out, the conclusions we drew from these procedures and, in support of these conclusions, the elements to which we paid particular attention and the procedures we carried out with regard to these elements. We draw your attention to the fact that we do not express a conclusion on any of these elements taken in isolation and that the procedures described should be considered in the overall context of the formation of the conclusions issued in respect of each of the three parts of our engagement. Finally, where it was deemed necessary to draw your attention to one or more items of sustainability information provided by Orano in its management report, we have included an emphasis of matter paragraph hereafter. The limits of our engagement As the purpose of our engagement is to provide limited assurance, the nature (choice of techniques), extent (scope) and timing of the procedures are less than those required to obtain reasonable assurance. Furthermore, this engagement does not provide a guarantee regarding the viability or the quality of the management of Orano; in particular, it does not provide an assessment of the relevance of the choices made by Orano in terms of action plans, targets, policies, scenario analyses and transition plans, that extends beyond compliance with the ESRS reporting requirements. It does, however, allow us to express conclusions regarding the process for determining the sustainability information to be reported, the sustainability information itself, and the information reported pursuant to Article 8 of Regulation (EU) 2020/852, as to the absence of identification or, on the contrary, the identification of errors, omissions or inconsistencies of such importance that they would be likely to influence the decisions that readers of the information subject to this engagement might make. Our engagement does not cover any comparative data.

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